Posted by I had some issues with my componet pack pods and dns resolution.
The following command runs a ping to my internal ihs host (interservice url) on every pod.
kubectl get pods -n connections -o name | xargs -I{} kubectl -n connections exec {} -- sh -c "echo {} && ping ihs.interservice.url -c 1" | tee ping.log
Most of the connections pods display the ip. Some do actually ping, but on most pods, ping itself is prohibited.
Another option is to use nslookup
kubectl get pods -n connections -o name | xargs -I{} kubectl -n connections exec {} -- sh -c "echo {} && nslookup ihs.interservice.url " | tee nslookup.log